<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
  链接地址：<a href="https://github.com/dwqs/blog/issues/22">https://github.com/dwqs/blog/issues/22</a>
  <meta referer="https://github.com/dwqs/blog/issues/22" >
  <style>
    .container {
      background-color: red;
      overflow: hidden; /* creates a block bfc */
      width: 200px;
    }
    .container p {
      background-color: lightgreen;
      margin: 10px 0;
    }
  </style>
  <div class="container">
    <p>Sibling 1</p>
    <p>Sibling 2</p>
  </div>
</body>
</html>